We propose a semiphenomenological method of analysis for intermediate energy $\alpha$-nucleus elastic scattering experiments and demonstrate its usefulness by analyzing available elastic $\alpha$-nucleus scattering data at 1.37 GeV.

NUCLEAR REACTIONS Proposed effective N-$\alpha$ amplitude, analyzed ${}_{}{}^{40,42,44,48}{}_{}{}^{}\mathrm{Ca}$, ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}(\alpha , \alpha )$, $E=1.37\mathrm{}$ GeV; Glauber model. Sole free parameter target independent.

• Received 17 January 1983

DOI:https://doi.org/10.1103/PhysRevC.28.2543